*{
    margin: 0;
    padding: 0;
}
li{
    list-style: none;
}
body{
    background: url(../images/黄山.jpeg) no-repeat fixed;
    background-size: cover;
}
/********************************以下都是导航栏************************/
.navbar{                                                
    background: rgba(1, 1, 1, 0.2);
    border-radius: 5px;
    border: 1px solid whitesmoke;    
    z-index: 2;
    transition: all .5s;
}
.navbar-default{
    position: sticky;
    top: 0;
}

.navbar-none{
    position: sticky;
    top: -55px;
}


.navbar-brand{
    font-family: Times New Roman;
    color: #777;
}

.form-control{
    background: rgba(255, 255, 255, 0.3);
    
}


.btn-default{            /*搜索框 */
    background-color: rgba(136, 135, 135,0.4);
    color: whitesmoke;
}
.btn-default:hover{
    background-color: rgb(99, 95, 95);
    border: 1px solid rgb(211, 211, 211);
    color: whitesmoke;
}

.form-control{/*搜索框*/
    background: rgba(1, 1, 1, 0.2);
    color: whitesmoke;
}



.form-control:focus{   
    border: 1px solid rgb(46, 45, 45);
}



.navbar-nav-left li:hover{   /* */
    text-shadow: 0 0 3px white;
}


.form-control::-webkit-input-placeholder{     /* placeholder颜色*/
    color:rgb(211, 183, 183);
}
.form-control::-moz-placeholder{   /* Mozilla Firefox 19+ */
    color:rgb(211, 183, 183);
}
.form-control:-moz-placeholder{    /* Mozilla Firefox 4 to 18 */
    color:rgb(211, 183, 183);
}
.form-control:-ms-input-placeholder{  /* Internet Explorer 10-11 */ 
    color:rgb(211, 183, 183);
}

.active a{  /* 导航首页模块*/
    background: rgba(1, 1, 1, 0.3) !important;
    color: whitesmoke !important;
}


.nav-signin,.nav-login{         /*导航栏登录与注册按钮 */
    width: 60px;
    height: 35px;
    margin: 5px 5px;
    border: 0 solid;
    border-radius: 5px;
    font-family: 'Lato', sans-serif;
    font-weight: 500;
    background: transparent;
    display: inline-block;
    box-shadow: inset 2px 2px 2px 0px rgba(255, 255, 255, 0.5), 7px 7px 20px 0px rgba(0, 0, 0, 0.1),
    4px 4px 5px 0px rgba(0, 0, 0, 0.1);
    outline: none;
    transition: all 0.1s ease;
    user-select: none;

}
.nav-login{             /* 登录按钮*/
    background-color: rgb(127, 163, 241);
}

.nav-signin{
    background-color: rgb(194, 211, 47);
}


.nav-login:active,.nav-signin:active {
    transform: translateY(3px);
}




 /***********************以上都是导航栏****************************/    



.cover {  /*背景遮罩*/
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    z-index: 999;
    backdrop-filter: blur(1px);
}

 .main-box{   
    position: relative;
    width: 85%;
    background:rgba(255, 255, 255, 0.5);
    margin: 20px auto;
    border-radius: 10px;
    padding: 10px;
    box-shadow: 0 0 2px black;
    padding-bottom: 30px;
}

.tit-line{                                                          /*  分割线*/
    text-align: center;
    background: url("http://www.visitxm.com/images/tit-line.png") center center no-repeat;
    user-select: none;
}


.navbar-brand1{
    animation: shake 1s linear 1 alternate forwards;
}

@keyframes shake{
    0%,100%{
        transform: rotate(0);
    }
    20%{
        transform: rotate(-15deg);
    }
    40%{
        transform: rotate(15deg);
    }
    60%{
        transform: rotate(-15deg);
    }
    80%{
        transform: rotate(15deg);
    }
  
    
}

footer{
    width: 100%;
    height: 200px;
    margin-bottom: 0;
    background:rgba(190, 185, 185, 0.8);
    display: flex;
    border-top: 1px solid black;
}

.footer-left,.footer-right,.footer-center{
    flex: 1;
    position: relative;
}

.footer-left-right img{
    width: 150px;
    margin: 0 20px;

}

.footer-left{
    border-right: 1px solid black;
    display: flex;
    align-items: center;

}

.footer-left-left,.footer-left-center{
    flex: 1;
}
.footer-left-left{
    text-align: right;
}

.footer-center{
    padding: 50px;
    border-right: 1px solid black;
}

.footer-right{
    margin: auto 20px;
}

@media screen and (max-width: 767px){           /*响应式布局*/    
    .nav-signin,.nav-login{
        width: 80%;
        margin-left: 10%;
    }
    .dowebok{
        height: 200px;
    }
    
    .dowebok p{
        display: none !important;
    }

    footer{
        display: none;
    }

}

